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. 2020 Apr 15;9(4):971. doi: 10.3390/cells9040971

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© 2020 by the author.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Examples of chromosomal configuration in pachytene stage inferred from observations of somatic and meiotic chromosomes in primates. RA + RA: association among rDNA arrays (RA) (observed in chimpanzee). RA + CHA: association between RA and constitutive heterochromatin arrays (CHA) (observed in slow loris). RA//StSat: non-association between RA and subterminal satellite (StSat) (observed in chimpanzee, bonobo, and gorilla). RA//URA: non-association between RA arrays and unknown repeat arrays (URA) (observed in chimpanzee and gorilla). StSat + StSat: association of interchromosomal StSat (observed in chimpanzee). StSat + NRA: association between StSat and non-repeat segments (NRS) (observed in chimpanzee). INTRAm: intercalary rDNA arrays (INTRA) in metacentric chromosome (m) (observed in Japanese and Rhesus macaques).